March 30, 2012

How to Recover Deleted Emails and Restore Them wholly

It can happen to anyone. We accidentally delete an email that we indubitably need. And it just happened to be leading work file, attachment or picture. So now what? How can I recover that email? Is it at all possible? Surely, it can be constantly deleted?

Well, there is good news and bad news.

Let's start with the good news.




Restoring Deleted Emails

If you delete an email, it hasn't indubitably gone anywhere. Even if you've emptied your recycle bin or the "Trash" briefcase in your Inbox - the email still isn't deleted. It's just that your computer law now has no way to frame out where it is. But it's there, still on your hard drive. By using extra email recovery tools you can recover deleted emails because these programs recognize these 'missing' files and can bring them back to life.

Now the bad news.

Act quickly and increase Your Chances

The bad news is you have to act quickly. You only have a small time-frame in which to try to effort to recover your lost email. Every little that you waste and continue to use the drive for whatever that isn't associated to recovering your emails, you severely decrease your chances of successful email recovery. Why?

Well, because your hard drive is constantly overwriting files to make space for new data you put into it. If your hard drive is full and there is not much space or memory available - it is highly probable that the email has already been overwritten and deleted - permanently.

Other Problems with Recovering Deleted Emails

Not all deleted or lost emails go to "Trash" folder. If you have suffered a computer crash or hardware failure or your operating law is corrupted in some way, then it is unlikely that emails you have deleted can be recovered.

Also, if you haven't opened the email at all or it hasn't been deleted the usual way due to file corruption, you probably will have less of a occasion to recover and restore the email in its entirety.

Nothing to Lose

Recover deleted email programs crusade and uncover the emails that you have deleted. You can crusade by entering a definite keyword for example. Then, you can choose to preview the email to see it's contents and if it's been recovered in its original state by the program. You can also opt to scan for what ever email program you are using (and need to recover) - whether web based emails such as Hotmail, Yahoo and Gmail or Outlook Express.

Best bit is this. Most of these email recovery programs are free to download. When they start scanning your hard drive looking for the deleted email and then carry on to find it and when you are fully satisfied that that's your missing email - then you can then hike to buy the software.

In essence, you have nothing to lose (if the email is not there - it's not there) and all things to gain.

Well, at least you can get your deleted email back.

How to Recover Deleted Emails and Restore Them wholly

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March 28, 2012

Methods for Debugging Microcontroller Hardware

Most of these debugging techniques can be applied to any microcontroller since they do not use any specific tools.

General debugging methods

There are many ways to debug hardware:




  • Ice.
  • Icd.
  • Simulation.
  • Serial Rs232.
  • Lcd.
  • Led.
  • Hardware pins.
  • Logic Analyzer.

Ice

The In Circuit Emulator is the most expensive way to debug your hardware. You buy a extra processor that physically takes the place of the normal processor. This extra processor allows software access to the internal carrying out of the processor (you can set breakpoints on hardware modules).

Icd (Pic microcontroller)

The next best thing to Ice is Icd (In Circuit Debug) Sometimes known as (Bdm - Background Debug Mode - for non Pic microcontrollers) let you singular step straight through code undoubtedly running in the target processor.

For Icd the processor has a small estimate of built in hardware that can halt the processor when the program reaches a specific address. The software can then read back all the registers and processor state.

Simulation

With a source code simulator you can step straight through the high level language code and see its follow on memory and variables without having to look at the collector code directly. This lets you focus on the high level language carrying out and lets you combine on the question you are trying to solve.

One great advantage of the simulator is that you do not have to wait to download and program the target processor (you do have to re-compile the code after changing its source code though). So you can cut out the time enchanting programming task just by using the simulator.

Note: Simulators are no good for debugging interrupts.

Debugging using hardware

Serial Rs232

Newer microcontrollers have a built in Uart giving you a virtually free debug tool that uses minimal resources and needs very small software coding.

For debug output you need to join together the Uart output pin (Tx) to a favorable level translator circuit e.g. A Max232 chip. You may even get away with direct connection (via a resistor) to the input of your Pc serial port (but this depends on the specifics of your Pc hardware) - using a translator chip will always work.

Advantages

  • Minimal coding.
  • Simple to use.
  • Minimal extra hardware.

Disadvantages

  • Takes a long time to output a character (~1ms).
  • Takes even longer for blocks of characters (~10s of ms).
  • Needs extra hardware.

Even straight through it takes time to output a character it is a beneficial debug tool as you can output the value of a variable to see what the microcontroller is undoubtedly doing.

Lcd

An Lcd (Liquid Crystal Display) gives a favorable way of displaying debugging information. It is also beneficial for many separate applications that need a text display output.

It is a module that displays text characters and a coarse screen size is 2 rows of 16 characters.

Most Lcd modules use the Hd44780 controller chip which is why Lcd routines built into high level languages always work.

Advantages

  • Very quick update (40us 4 bit data bus).
  • Useful in many projects as the main display interface.
  • Simple to interface to an 8 bit port (only needs six of the 8 bits).

Disadvantages

  • Uses up an 8 bit port.
  • Hardware is more expensive (e.g. Compared to a serial port chip).

Led

Using an Led as a microcontroller 'alive' indicator.

Even though it is such a simple thing to blink an Led on and off it is very beneficial as a debugging tool as you can tell at a look whether the code you just downloaded is working.

Sometimes you can will incorrectly set parameters on the programming software or compiler which will stop the code dead.

The Led indicator gives a quick health check for your microcontroller which is easy to see.

Pin Debugging

This is the simplest and crudest debugging method; using any ready port pin. Plainly set or reset this pin at any point in the code that you want to monitor.

It has minimal impact on the code speed or size and can give you the following information:

  • You can tell if the code is active.
  • It gives you the repetition rate.
  • It gives you the routine time length (if you set the pin at the start and reset it at the end).

Note: To do testing you need an oscilloscope or a frequency counter and time interval measuring tool.

Logic Analyzer

This tool attaches to the pins you want to survey and captures the waveforms displaying multiple traces on a singular display. It uses a trigger module that can be set to begin on combinations of the input signals or on their length. So you can trigger on specific patterns or on glitches or both.

For non-microcontroller based systems (e.g. 80486 based) where the data and address bus are exposed a logic analyzer can show the address and data organized into hex words i.e. Readable. Some can disassemble the instructions showing what the processor was doing at the trigger point.

For a microcontroller based principles the logic analyzer can be beneficial in examining peripheral carrying out e.g. For debugging the Spi or I2C busses some logic analyzers also have built in withhold for these protocols.

Another use for the logic analyzer is to capture output over a long period of time depending on the memory capacity of the logic analyzer.

Summary

In short there are many techniques to debug your hardware ranging from simple (an output pin) to involved (a logic analyzer). All of them can be beneficial depending on the question you want to solve.

You can find more data here and how to build a website like it here.

Methods for Debugging Microcontroller Hardware

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March 25, 2012

How to Make Your Own Magic Eye 3D Stereogram Images

Magic Eye 3D Stereograms, honestly a new way of finding at the world. What are them? Well, they are visual illusions, inexpressive images inside other image.

If you can't see them, its difficult to understand how can be this possible, but its not that difficult. There are other images that when you look at them from close length they show something and when looked from far away they appear to be something different. Basically a stereogram is a 3D image inexpressive in a 2D image. Regularly the 2D image is nothing more than random dots or some sort of pattern, but when looked in a special way, you will see a 3D shape.

How to make a stereogram of your own? Well, you will need a computer program to aid you in this task. What you need is a pattern and a mask. The mask is the most difficult to make for your own. This is honestly a depth mask, and is in black and white, where the whiter a point is the closest it is to you. You can try with the paint program, but its difficult to have good results. Regularly a mask is made with a 3D rendering program (like 3D Studio), that can create depth masks agreeing to the way you view the 3D object (you can rotate it, move it closer or supplementary away, etc).




Another kind of stereogram is made by simply taking 2 photos of the same object from 2 slightly separate positions. You can think of the human eyes like 2 photo cameras, the eyes are slightly apart, this gives us the depth feeling. And this depth feeling is what we are trying to achieve.

How to view a magic eye 3d stereogram:

Bring the stereogram image honestly close to your eyes (until you touch it with your nose). At this length your eyes cannot focus on the image and they look somewhere behind the image. Now, gently push the image away from you, while trying to keep the eyes off focus. At some point you will see the inexpressive image.

Another method is to take an object and put it behind the image (about half of meter behind it). Now, focus on the object behind the image while retention the eyes finding at the image.

Do you remember how is the feeling when you are drunk? Your eyes don't look at the object nearby you, but rather through them. Well, this is honestly what we are trying to achieve (look through the object, not get drunk, loll). If you can administrate to get your eyes off focus, at some point you will be able to see the inexpressive image.

If you're not train to look at stereograms, this might take you some time. First time I've looked at a stereogram it took me like an hour to finally be able to focus the eyes correctly to see the 3D image.

Catalin Catana

How to Make Your Own Magic Eye 3D Stereogram Images

USB Cable Micro Mini

March 23, 2012

Is it inherent to Retrieve Deleted Text Messages? - How to Go About Retrieving Deleted Text Messages

Are wondering whether you can retrieve deleted Sms? Need to know is It possible to retrieve deleted text messages? If so then you're in the right place as in this record I will show exactly how to go about retrieving deleted text messages. So keep reading to learn how to get your lost Sms's and other Sim Card Data back.

Firstly let me elucidate how it is possible to retrieve deleted text messages. You see a Sim card doesn't immediately erase a file once you delete it. Instead it just frees up the space that was occupied by that file (massage) and lists its space as ready re-usable space. Any way until that space is overwritten by new data, in your case new messages, phone numbers etc., your old deleted file is still there and can be recovered.

Now in order to get the deleted messages back you are going to need two tools. One of them is a Usb Sim card reader and the other is a decent Sim Card saving program.




Sim card saving programs are very similar to Data saving software but they are designed specifically for recovering data from Sim Cards. They are able to recover deleted text messages, deleted phone numbers, call logs and fullness of other deleted data from your Sim, and they can do it all at the click of a few buttons.

The good news is that most of these programs offer a free trial version for download, so you can check to see what messages are retrievable right now.

Therefore if you were wondering is it possible to retrieve deleted text messages then wonder no more as it can as a matter of fact be done with the right tools. If you have a Usb Sim card reader and a good Sim saving Program then Retrieving Deleted Text Messages should be a walk I the park. Visit the link below to learn more about recovering deleted text messages and to download some Free Software...

Is it inherent to Retrieve Deleted Text Messages? - How to Go About Retrieving Deleted Text Messages

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March 20, 2012

How to Retrieve Deleted Photos on Blackberry - Sony Cyber-Shot Recover Accidentally Deleted Photos

If you own a Blackberry Phone, a Sony Cyber-Shot Camera, or any type of digital camera or storage gadget for that matter and seeing for a way to get your deleted pictures back then you've come to the right place. Below I will show you how to retrieve deleted photos on Blackberry Phone Plus recover accidentally deleted photos on a Sony Cyber-Shot and any other type of Sony Memory stick or memory card...

You see your Blackberry's storage, Cyber-shots memory stick, or any other memory card for that matter is very similar to a computer's hard drive. And very much like a computer's hard drives these storage devices do not immediately erase deleted files; instead what they do when a file gets deleted is list its space as ready re-usable space. Now until that space is overwritten by new data, in your case new photos etc... Your old photos are still there and can assuredly be retrieved with the right tools.

The tool you will need is a good data salvage program, preferably one that is designed specifically for recovering deleted photos and files from movable Phones, digital cameras, memory cards etc... Personally I used a program called stellar photo salvage when I needed to recover photos from my Sony Memory Stick, I assuredly didn't think the program would do much, but was assuredly quite surprised at its results.




The software was assuredly easy to use and Free to download, so I was able to check to see if my photos were assuredly recoverable before I downloaded the full version. For whatever that is assuredly seeing to retrieve deleted photos on Blackberry, Sony Cyber-Shot or any other type of digital camera I would seriously recommend Stellar Photo Recovery.

So for all you blackberry users out there trying to outline out How to retrieve Deleted Photos on Blackberry go ahead and download a good photo salvage program and you may have some luck. The program works for Sony Cyber-Shot to recover accidentally deleted photos, works on Sony memory sticks and all other types of digital memory cards as well, check it out below...

How to Retrieve Deleted Photos on Blackberry - Sony Cyber-Shot Recover Accidentally Deleted Photos

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March 17, 2012

How To Flash A Phone To Cricket Or Metro Pcs

Flash or Flashing--Technically, flashing refers to the overwriting or re-writing of the phone's firmware. There are many phones which can be flashed to cricket with all features working. On most Cdma phones, programming the phone can be done "over the air" by dialing a extra code, commonly *228 or some variation. Colloquially speaking, flashing can also loosely mean production a phone from one carrier work on someone else carrier. The easy way to tell the inequity is that if your phone does Not take a Sim card, then it is probably Cdma.

To flash a phone to cricket you will be overwriting th phones firmware. The firmware is software in the phone that doesn't turn when you turn it off, and it cannot be deleted unless it is overwritten, hence flashed. It requires specific files called prl files.Prl or Prl File--Short for preferred Roaming List--A small text file containing instructions for how a phone connects to a specific network's radio towers It is commonly loaded by connecting the phone to a computer to overwrite its data. There are a few tools used such as a pst Pst--Short for Phone assistance Tool or Tools--Special software used by phone manufacturers to program their phones. And also a monster file - -"Monster File"/"Monster Pack", Rom, or "Kitchen"--System software that is needed to flash a phone.

In practically all case you will need to passage the phones assistance programming menu- - -Service Programming Menu--A extra menu typically incommunicable from the customary User Interface that allows for "deep programming" of a phone.You will also need passage to msl and spc codes specific to the gismo you are flashing.Msl/Spc--Special six-digit codes needed to passage assistance programming features on the phone. passage to the assistance programming menu can be disabled in a phone's firmware.




Depending on your phone, it may need extra steps to unlock or get Wap and Mms working. That is why you need the msl/spc codes to allow deep programming to unlock these features. Not all phones will be capable to passage wap or send and receive mms.

Ringtones commonly have to be prepaid using a flex bucket. It is best to download ringtones before you flash your phone to cricket since they have a miniature option of ringtones and wallpapers.There are cases were flashed phones will not be able to download ringtones directly from cricket.

The details outlined above will not only work with cricket but you can also flash phones to metro pcs using the information in case,granted above. It is best to do all your study before purchasing your phone to ensure that the cell phone you are curious in can be flashed to cricket or metro Pcs.

How To Flash A Phone To Cricket Or Metro Pcs

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March 15, 2012

Hcs08 Microcontroller instruction Sets Explained

The Full Hcs08 instruction Set

All S08 instructions (arguably all computer instructions) can be plan of as three basic types.

Data movement - a value is read from one location and written to another. All of the load/store instructions are examples of movement from one location to a separate one. One of the locations is commonly somewhere in main memory and has an associated address, the other is in one of the Cpu registers and has only a name. Information flow can occur in either direction (depends on the instruction). Also the load/store instructions that involve a Cpu register and main memory there are several replacement that move (copy) data from one Cpu register to another. There is one instruction, mov, that copies from one memory location to another. There are also a estimate of instructions that write an implied value (usually ones or zeros) to a Cpu register or memory location. Clra, is an example.




Data processing (Alu) - there are two types; unary and binary. Unary instructions control on only a single value obtained from either a Cpu register or a memory location and write it back (the same place) after some modification (processing). Nega is an example. Binary instructions control on a pair of values which they couple in some fashion to yield a result. These instructions approximately always have at least one of the values come from a Cpu register and place the consequent back in that register. Add is an example. A value is obtained from register A and from a memory location. These values are combined (processed) using the arithmetic increasing operation, and the consequent is written back in register A

Program-flow altering - where the value of the Pc is (or in the case of conditional branches, might be) changed from its normal upward counting sequence. This type of instruction is used to make subroutine calls, code loops, and code if-then-else style program constructs, to name a few.

Hcs08 Microcontroller instruction Sets Explained

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March 12, 2012

engaging Diy Microcontroller Projects! - Digital proclamation law

1.1) Objectives

In this project, we look at how we can implement a "Digital 2.4km Run proclamation System".

1.2) Design Methodology The whole design process can be partitioned into a pyramid as follows.




Specifications and Requirement Capture

Components comprises of Led display, a voice synthesizer, a keypad and an infrared Interceptor.

1) Button on keypad is depressed when the runners are flagged off.

2) The display will show continuously the time lapse at 0.1 second resolution.

3) When the infrared ray over the track of the runner is intercepted, the time at the point of interception will be announced.

4) The time will also be logged on the system.

System Concept

The system is capable of displaying the time on the Led display once the start button is pressed. At the same time, the infrared interceptor is started, and is continuously checking if its infrared ray is intercepted, and if so, trigger the system to announce the time of interception to the runners, and make a log of the time of interception to the system. The runner should also be able to see the time they took on the Led display. If the Stop button is pressed, the timer should stop timing, and log the time of disconnection on the system. When disconnected, the infrared interceptor and Led Display are also to be off.

Working Principles

In order to implement such a system, background knowledge about the workings of each component in the system is required. In this case, we need to know the controlling of the Led display, the voice synthesizer, the infrared interceptor, and the keypad, and finally we will show a flowchart on integrating these devices.

Led Display

As found, Leds run on about 2 volts, hence we need a simple resistor in series to Ant. Eject some of the voltage and limit the current the Led can draw. Assuming an input voltage of 5V and a current of 10 ma, and applying V=Ir, we can find the required resistance as R = V/I = (5 - 2)/.010 = 300 ohms.

To have a brighter Led, I can pick the resistor as 270 ohms allowing more current flow, making the Led brighter. With that, the new current drawn is I=V/R = 3 / 270 = 11ma.

Given a 7 segment Led, the basic configurations looks as follows:

The 7 segment Led tasteless Anode will be adopted because the microchip is now driving up to 8 Leds (segments) at a time off a singular port. Just as each I/O pin has a limit to the number of current it will source or sink, each port also has a limit. To do the least damage, we are sinking the current to ground rather than sourcing it to 5 volts.

To add more displays, the cathodes from a singular segment of each display are all connected together and then connected to a Pic I/O line straight through a series resistor. The tasteless anode is made controllable by a Pic I/O pin. In this way, the segment value for a given display can be configured and straight through turning on the anode for that display, we can see the message. The same policy can be applied to the other Led displays, and when a favorable timing is chosen, we should be able to see the full display of all Leds without flicker. The favorable timing is chosen by finding out the time constant of the Led using a datasheet, and from this value, we can pick the accepted refresh time such that it is less than the time constant, allowing the Led to appear spellbinding all the time.

Also a transistor is placed between the Pic and the tasteless anode to each display. Since the current for the whole display runs straight through this one pin, it could overload a singular I/O line. To overcome this issue, the transistor amplifies the current drive quality of the I/O. To operate, put ground on the I/O pin to turn on the transistor and enable a given display, or put 5 volts on the pin to turn off the transistor and the display.

The form below shows the case for 4 Led displays:

With this way of using Led displays, we can plump the numbers to display based on the configuration as follows:

Take segment 'dp' as the Msb, and segment 'a' as the least necessary bit, and to enable a singular segment to light up, we must apply a low to the corresponding segment, since it is an active low input. The table below shows the segments which we have to operate to display each digit from 0 to 9.

Voice Synthesizer

In order to announce the time of interception to the runners, there is a need to store each digit from 0 to 9 in human voice and depending on the situation, announce the strict time by finding the location of the voice segment corresponding to the strict digit.

As found, the average human voice frequency is estimated at 2 Khz to 4 Khz. Hence, we need to sample at a Nyquist sampling rate of f(sample)>2*f(voice)= 8 Khz. We pick the minimum sampling frequency as 8 Khz. Given this frequency, it implies that the voice should be sampled every 1 / 8 Khz = 125 us.

The voice corresponding to a singular digit can also be broken down into distinct syllabus, and each syllabus should take up equal frequency of sampling. For example, the rate of sampling a singular digit of 3 syllabuses will have each syllabus taking up 8000 / 3 = 2667 Hz To start, we can use the sound recorder in case,granted under Microsoft Windows to store the voice as a wave format. We have to set the settings as 8 kHz, 8 Bit, Mono. Next, we take off the header bytes by using a binary editor such as Hexplorer. After which the voice data corresponding to each digit can be stored in the Eprom, and being referred to as and when needed.

To recover an analogue signal from the digital signal stored in the Eprom, a Digital to Analogue converter is used. The digital signal has to be fed to the analogue converter at a rate of 8 kHz or every 125 us. The yield from the D/A is then fed into a Lpf of 4 kHz to take off any noise. The final yield is then fed straight through a power amplifier such as Lm386, and straight through current amplification, we can accumulate load matching with the 8 ohm speaker, and get max power output.

Infrared Interceptor

The infrared interceptor is made up of the infrared Led, the infrared detector Gp1U5. The infrared detector contains both the Ir detector and a small circuit that detects a 40kHz modulation. This detector is able to reject noisy light signals and hence has better performance. It works by detecting the modulated infrared light from the Ir Led, and straight through amplifier and band pass filter of 40 Khz, get a clean signal.

If there is any runner crossing, the detector will sense a dissimilarity and we can use the signal to feed into the interrupt pin of the microprocessor which will then announce the time and also make a log on the system.

Keypad

The form on the left shows the schematics of the 4*4 keypad. The needed outputs can be fed to the Programmable Peripheral Interface 82C55 of the microcontroller for reading the status, and straight through the 82C55, settle the type of interrupt invite to the microprocessor.

In our system, button 1 is designed to start the run, the Led display and the infrared interceptor. Button 2 is designed to stop the run, turn the Led display and infrared interceptor off. All other buttons should not interfere with the doing of the system.

Realization

We use a flowchart to show how these distinct devices can work together.

With this done, we have already gotten ourselves a very concrete design on paper, and it is now time to implement this into stock straight through the necessary hardware and software implementation.

Hope my little project has inspired you with lots of creativity for you to start your very own Diy projects as well.

engaging Diy Microcontroller Projects! - Digital proclamation law

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March 9, 2012

C Programming For the Pic Microcontroller

The C programming language surely reigns consummate in the embedded electronics community. Microprocessors can be found in 99% of all electronic appliances these days from car radios to cookers and it is the software that the microprocessors run that gives personality to the whole design.

Many hobby electronic enthusiasts cut their teeth on microprocessors by learning assembly language. Admittedly the Pic Microcontroller from Microchip is the processor of choice for many beginning on this path.

Assembly language presents a free of payment entry into this shop - ideal for the beginner on a little budget. Any way assembly language is somewhat laborious if a complicated task needs to be coded. Now free of payment C compilers are ready for download, so students can begin their programming sense in a high level universal language that can be used on many other high and low end microprocessors.




Assembly language is little to use with one single processor house and if the engineer migrates to someone else processor, he has to start again from scratch. C is a universal language and it is the headache of the compiler designer, not the engineer, to make sure the C code is compatible with the processor.

Most software written by non-hobbyists is written in C. Schedule snippets can be collected and used across many projects with separate processors until whole libraries of code are amassed. Code writing then becomes a simple task of choosing which code functions are needed and gluing them together - a task that the C programming language is particularly distinguished to.

Simple C for the Pic microcontroller gets anyone with little or no sense of C or Pic microcontrollers programming in as little as half a day.

C Programming For the Pic Microcontroller

Loan to Value Definition

March 7, 2012

The Evolution of Prehistoric Intel 4004 Processor to enchanting Microcontroller Embedded principles

The invention of microprocessor was a milestone to the introduction of microcontroller. The first microprocessor was pioneer in 1971 by Intel. It was the 4 bit microprocessor with the clock speed of 740 Khz. It knows as Intel 4004 and the first commercial Cpu in singular chip.

Three years later Intel had manufactured 8 bit microprocessor of Intel 8080. It was determined by many to be the first true microprocessor general purposes used. It has used in variety applications such as traffic light and cash register. The Altair 8800 was one of the first computer as well used the microprocessor.

The complexities of microprocessor had driven to introduce of microcontroller. In order to be used microprocessor other component need to be adding externally such as memory, input port and yield port. Any way microcontroller had combining the Cpu, memory, peripheral, input-output function and analog to digital converter in singular chip.




The year of 1976 was a necessary in microcontroller history. Intel had invented the first world microcontroller. The microcontroller were Intel 8048 and Intel 8748. Since then the uses of microcontroller was growth every year with dozen of vendors. The tasteless vendors to the day were Intel, Freescale, Microchip, Arm and Atmel.

In 1993, the introduction of Eeprom had pump up Microchip sales with their famous chip of Pic16C84. It is allowed to be erase memory electronically and quickly. This electrically erasable memory made it cost less than Cpu that required quartz "erase window" for erasing Eprom.

Later on the Pic16F84 had introduced due to replacing Eeeprom with flash memory. As the affected the cost of singular chip plummeted over time. In 2009 the cheapest 8 bit microcontroller available with cost of .25 in quantity of thousands. Nowadays the microcontroller are low-cost and easily available for hobbyists, with large online communities nearby inescapable processors for hobbyists, with large online communities nearby inescapable processors.

The Evolution of Prehistoric Intel 4004 Processor to enchanting Microcontroller Embedded principles

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March 4, 2012

ideas manufacture ideas - All-In-One Versus Best-of-Breed

Complex systems are often designed by using easy rules and principles. One (of many) such an organizing principle is about selecting a All-in-One approach or the other - Best-of-Breed design.

The software of Microsoft (and many others) "hide" an All-in-One approach. This is not "bad", nor "good," but just a preference. We know this from the mix of the operating system with other functionality. And a recent incident in Internet Explorer reminded me of this kind of architecture: Ie7 offers browser tabs. This is a great feature in which you only have to open Ie7 once and you can use the same browser-engine for accessing the internet.
One of the main issues with an All-in-One (AiO) approach is that one may spoil for all. In Ie7if you are related to a site that no longer responds you will loose all your relationship if you need to abort.

Another example of an All-in-one configuration are music equipments where dissimilar devices - like a Cd-player and a tuner -- are stored in one single box. The design of such a single box is easier to streamline, but individual "best-of-breed" devices are often technically more sophisticated. In such a best-of-breed (BoB) architecture a buyer may pick to select the best o each type of device. The best Cd recorder is possibly from a dissimilar supplier than one from a supplier which offers all (in one).




Both configurations - AiO and BoB - are used in a wide area, also in organizations and systems design. The advantage of designing software and systems with a AiO-approach is that you do not have the hunt the store and buy from a "expensive" supplier and join a explication that will not perfectly match to your needs. Rather designing and developing AiO by your own society is perceived to be much easier. Administration of one improvement team is easier than managing dissimilar parties.

Awareness of such system helps your society in the improvement of stock improvement and design. This awareness is however only a first - but foremost - step in managing of systems development.

© 2007 Hans Bool

ideas manufacture ideas - All-In-One Versus Best-of-Breed

Loan to Value Ratio Definition Pci Wireless Network Card

March 1, 2012

Embedded Gui construct - Photoshop Can Help

It is always impressive to palpate a of course "slick" user interface. A truly graphical user interface (Gui) should of course be pleasant and fascinating at first sight. Not all that many years ago we were article with electronic devices with cryptic displays that had minuscule to no graphics; we just wanted the new, novel gadget to be functional.

But, as time has pushed us forward, our society has come to be well-known with, and, it is quite clear, dependent upon embedded electronic devices such as cell phones, personal assistants, and your cordial automotive dashboard. "Functional" is no longer enough.

In the world of the desktop computer it is unheard of to not have a "pretty" graphical user interface. In the world of embedded devices pretty Guis (pronounced "Gooeys") had been harder to come by. However, the end product audience, you and I, no longer accept a mediocre display on our technological wonders. (We certainly don't in our games, but that is a whole other story!)




Fortunately, some vendors in the embedded gadget market had seen that there was not only a need to help descriptive designers and engineers work more closely together in the embedded product design world, but that there was an confident merger of the two disciplines. One such company in the embedded Gui market, Tilcon, has recently introduced a new version of their Gui design system that substantially reduces the time it takes to make a expert and pretty Gui.

In the embedded graphics world there is the idea of a "virtual" interface. A display, for instance, on the dashboard of your car, might show several meters showing speed and tachometer readings, a bar graph for temperature, a range of "idiot" lights and even touch-screen controlled buttons. You are shown data in real-time as it is communicated to the display from the many microprocessors throughout the vehicle.

These entities used to be real corporeal entities, and now they are painted on the screen by the Gui system. In the Gui world these virtual objects are called "widgets." These "widgets" are painstakingly crafted by descriptive artists to appear as real as possible.

Every embedded product Gui design is finally a work of aesthetics. To sell in a competitive world, the gadget must fit into the flow of the broad product team's conceptual goals. Ordinarily the Gui team creates a "basic" widget set and then has to painstakingly work with personel artistic renderings to write code to recreate the image, or possibly to import every photo and element. By anyone process, it is no small feat.

Tilcon has elevated the efficiency of the embedded Gui design process to a new level with its modern Adobe Photoshop integration. In the Tilcon Gui system, a basic set of widgets are supplied as standard. The embedded designer plainly drags and drops the desired widgets on the screen as needed. Once the screen design is complete, the user plainly hits the export button and out pops a Photoshop file. This file creates all the layers needed by a Photoshop-based designer to begin the artistic process of "branding" and creating the desired look and feel of the end product.

The fascinating part of this process, for those of you that are well-known with Photoshop, is that every particular widget object is exported into its own "layer," and the layers are laid out in Photoshop "groups." If a "button" widget has one image when "on" and another for "off," each state will have its own layer created. This Psd file is delivered directly to the descriptive designer. The artist goes to work in parallel with the embedded Gui engineer. Every particular item can be hand crafted inside the Adobe toolset, and upon completion, the final file is delivered to the engineer, who plainly imports the new look by pushing an "import" button. Suddenly, the screen is gorgeous!

Perhaps even more importantly, the engineer has prolonged his work unimpeded using just the basic widgets. Team productivity is enhanced. product supervision is happy. The sales team will love the new expert appearance of the end result.

The implications of the time savings that this process represents to product design teams are obvious. What might not be so confident on first inspection is how rapidly a team can "re-skin" its product look, or "custom-brand" the product for its own end customers. The result: a product design team has faster access to great-looking displays, can use the same gadget for several different end customer's needs and can deliver a custom appearance for each such buyer with much greater ease and time savings. Now, that's worth seeing!

Embedded Gui construct - Photoshop Can Help

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